新型钠配位聚合物的合成、表征及其晶体结构

Synthesis,characterization and crystal structure of novel sodium coordination polymer

用溶液法合成了未见报道的2-氨基-5-硝基苯甲酸钠配位聚合物,并得到晶体.通过红外光谱、元素分析、X-射线单晶衍射偷和循环伏安法对钠配位聚合物的结构和电化学性质进行表征和研究.测试结果表明,标题钠配位聚合物属单斜晶系,空间群P21/n,晶胞参数为a=0.681 30(7)nm,b=0.692 22(8)nm,c=2.068 83(18)nm,α=90.00°,β=94.877 0(10)°,γ=90.00°,V=0.972 15(17)nm3,Z=4,Dc=1.641g·cm-3,F(000)=496,钠配位聚合物是通过弱π-π堆积作用自组装成二维层状超分子结构,在循环伏安图上出现一对氧化还原峰.

The title complex Na（ Ⅰ ）[2-Amino-5-nitro sodium benzoic acid ]were synthesized in the methanol,and it was characterized by IR, elemental analysis, UV and X ray diffraction method. The cryslal belongs to monoclinic,space group P21/n, and cell parameters： a=0.681 30 （7） nm,b=0.692 22 （8） nm,c=2. 068 83 （18） nm,aα=90.00°,β=94.8770（10）°,γ=90.00°,V=0. 972 15 （17） nm3, Z=4,Dc=1.641 g· cm -3 ,F（000） =496. The cell packing diagram shows that the complex self assembled with 2-dimensional supramolecular network supporles by ππ interaction ,and appearing on a pair of REDOX peak in the cyclic voltammograms.